Jessie Zane, Fangbringer

Deathtouch
When Jessie Zane enters and whenever you
cast a snake spell, you may reveal a card you
own from outside the game named Ambush
Viper. If you do, choose a number between
0 and 5 at random. Put the revealed card into
your library X cards from the top, where X is
the chosen number.
Whenever a creature named Ambush Viper enters under your control, draw a card.